Time-interleaved ADC mismatch optimization method based on task scheduling
A technology of time interleaving and optimization methods, applied in code conversion, electrical components, analog/digital conversion calibration/testing, etc., can solve problems such as adding additional channels, residual mismatch, etc., to improve adaptability, reduce power consumption and area , Improve the effect of spurious-free dynamic range
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[0022] Below in conjunction with accompanying drawing, further illustrate the present invention through embodiment.
[0023] In a time-interleaved ADC, usually by reducing the quantization time of the channel corresponding to the current quantization period or increasing the time length of the current quantization period, the corresponding channel in the current quantization period can be quantized ahead of time. At this time, in the remaining time of the current quantization period The corresponding channels are all in a waiting state, wasting a lot of time. Based on the task scheduling algorithm, the present invention divides all channels that have been quantized at the same time into a group waiting for sampling, and randomly selects a channel from these channels for sampling at the next moment of sampling, so that randomness can be realized. After the quantization of a single channel is completed in advance, it is placed in the free channel pool for use by the task schedul...
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